insert_page

Description:

public int insert_page (Widget child, Widget? tab_label, int position)

Insert a page into this at the given position.

this	a `GtkNotebook`
child	the `GtkWidget` to use as the contents of the page
tab_label	the `GtkWidget` to be used as the label for the page, or null to use the default label, “page N”
position	the index (starting at 0) at which to insert the page, or -1 to append the page after all other pages

the index (starting from 0) of the inserted page in the notebook, or -1 if function fails